brain fart 

momentary mental lapse as when you see someone familiar but forgot their name the instant you were going to say hello

Lover 1 Susan: Oh John that was sooo good!

Lover 2 John: Ohhh yeah, uh, rats I just had a brain fart. Damn what's your name again?

brain fart by no1sandman August 1, 2010

Brain fart 

A sudden lapse of memory or judgment usually the result of ass gnomes dwelling in your mind cave.

Person 1: Hey baby

Person 2: What!?
Person 1: Oh sorry I thought you were my girlfriend
Person 2: what im a guy!
Person 1: uh errr (realizes it is unmistakably a guy)
Person 3: Don't get upset, it appears he is having a "brain fart"

Person 1: A brain fart?
Person 3: yes a brain fart, see they happen when ass gnomes dwell in your mind cave, causing disruption to your brain juice

Brain fart by Thecaveofgreatness August 21, 2010

Brain Fart 

The inability to remember something.

What's that honey? Our anniversary date? Sorry, I think I'm having a brain fart!

Brain Fart by Henry Harmison August 4, 2008

brain fart 

When someone does not perform an action that obviously should have been done, especially when you are under pressure and must think quickly.

Phillies fan: "Dude, Rod Barajas had a brain fart last night! He should have blocked the plate instead of standing up!"

Mets Fan: "That's not a surprise."

brain fart by DW5 December 28, 2008

brain fart 

A sudden thought, seemingly out of nowhere, that has nothing to do with the topic you are discussing.

We were discussing the party when all of the sudden my husband had a brain fart and asked me to remind him to change the air filter on his car.

brain fart by Sleeping Aurora July 21, 2014

Brain Fart 

When your brain farts

"I just had a brain fart, I forgot how to say 'pizza'"

Brain Fart by 7modybu50 March 12, 2020

brain fart 

when you either blurt out something extremely wrong or embarassing infront of people or when you completely forget how to do something or say something

1. forgeting your name
2. I love you!! to someone infront of a bunch of people and they look at you really weird then you say or think oops brain fart

brain fart by crazymusicdudette January 2, 2009